Stangg is a rare Legendary Creature — Human Warrior card from Legends (LEG), collector number 260. Current market price: $11.84, TCGplayer market prices via Scryfall.
When Stangg enters, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. Exile that token when Stangg leaves the battlefield. Sacrifice Stangg when that token leaves the battlefield.